Thanks for the query.
As you had unprotected intercourse
around the time of ovulation, there is possibility for pregnancy
Your symptoms also suggesting the possibility.
You better wait till your expected date of period and undergo blood test
which can give accurate result. You can also go for urine test but the sensitivity of urine test is less in early pregnancy.
If you choose urine test better to do 5 to 7 days after missed period.